{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["engineering feature", "material", "process parameter", "biomedical", "concept or principle", "application"], "input": "The wear rates of carbon steel cladding-2 ( 1.99 × 10−7 mm3·N−1·mm−1 ) and carbon steel cladding-3 ( 2.49 × 10−7 mm3·N−1·mm−1 ) approximate the wear rate of HSS ( 1.59 × 10−7 mm3·N−1·mm−1 ) ."}
{"engineering feature": [], "material": ["carbon steel", "HSS"], "process parameter": [], "biomedical": [], "concept or principle": ["wear"], "application": []}